A Mexican photojournalist who said he was being threatened and harassed is found shot dead with four other people in a flat in Mexico City.

The Russian defence ministry grounds its fleet of Mi-28 attack helicopters after a fatal accident at an air show on Sunday.

Nigeria's army says it has rescued 178 people, more than 100 of them children, from Boko Haram militants in the north-east of the country.

US President Barack Obama is set to unveil what he calls "the biggest, most important step we have ever taken" in tackling climate change.

Bra-wearing men and women stage a protest in Hong Kong after a woman is jailed for assaulting a police officer with her breast.

Heavy monsoon rains in India kill more than 100 people in the past week and force tens of thousands of people to take shelter in relief camps, India's home ministry has said.

A nine-year-old boy dies after being accidentally hit in the head by a bat during a baseball game in the USA.

A Syrian warplane crashes in a marketplace in the north-western town of Ariha amid bombing raids, killing 12 people, activists say.